There's a part of the line a few miles from Waterloo where the line runs above the level of the surrounding land, so you can see into people's front rooms (if they live in a second floor flat).
At some time in that period, probably in the early seventies, and for I'd say a couple of years, it was possible to see from the railway line the top of a factory chimney (the base being out of sight) standing up above the level of the line. And incredibly (I swear I'm not making this up), sat right on top of the chimney was a wrecked sports car (I'd say a pink Triumph Spitfire, or something of that ilk).
Of course, I've never known how or why it got there, but I've always wondered.
